Note 9 - Inventories (Details) - Inventories (USD $) In Thousands, unless otherwise specified	Aug. 25, 2013	May 26, 2013
Inventories [Abstract]
Finished goods	$ 12,825	$ 11,297
Raw materials	8,778	9,290
Work in progress	2,986	3,526
Total	$ 24,589	$ 24,113	[1]

[1] Derived from audited financial statements.